English verge in underpainted horn gilt pair cases Circa 1780

Underpainted horn pair cased verge pocket watch
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An English verge in underpainted horn gilt pair cases, circa 1780. Full plate fire gilt movement with square baluster pillars. Pierced and engraved cock, silver regulator disc. Fusee and chain with worm and wheel barrel setup between the plates. Plain three-arm steel balance, blue steel spiral hairspring. White enamel dial with Roman and Arabic numerals, fine gold arrow hands. Gilt metal pair cases, gilt pendant and bow. Plain gilt inner. Maker’s mark ‘IW’ in a rectangle. Gilt outer covered in translucent horn underpainted fern, ladybirds, ants and butterflies.
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Diameter: 48 mm
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Depth: 14 mm
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Signed: Alice Rowell London 1780
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Unusually the watch is signed and dated for the original lady owner showing it was specially ordered. In excellent condition.